Optical coherence tomography visualisation of burst balloon catheter trapped by coronary stent

2016 ◽  
Vol 12 (6) ◽  
pp. 757-757
Author(s):  
Tetsuro Shimura ◽  
Masamichi Takano ◽  
Takahiro Imaizumi ◽  
Akihiro Tabata ◽  
Yoshihiko Seino ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Balloon Catheter ◽  
Coronary Stent ◽  
Optical Coherence

Coronary Stent Reconstruction in Intravascular Optical Coherence Tomography

2021 ◽  
Vol 41 (4) ◽  
pp. 0417001
Author(s):  
刘铁根 Liu Tiegen ◽  
陶魁园 Tao Kuiyuan ◽  
丁振扬 Ding Zhenyang ◽  
刘琨 Liu Kun ◽  
江俊峰 Jiang Junfeng ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Coronary Stent ◽  
Optical Coherence ◽  
Intravascular Optical Coherence Tomography

scholarly journals Performing percutaneous coronary interventions with predilatation using non-compliant balloons at high-pressure versus conventional semi-compliant balloons: insights from two randomised studies using optical coherence tomography

Open Heart ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. e001204
Author(s):  
Florim Cuculi ◽  
Matthias Bossard ◽  
Wojciech Zasada ◽  
Federico Moccetti ◽  
Michiel Voskuil ◽  
...  
Keyword(s):  
High Pressure ◽  
Optical Coherence Tomography ◽  
Stent Implantation ◽  
High Pressures ◽  
Stable Coronary Artery Disease ◽  
Balloon Catheter ◽  
Optical Coherence ◽  
Stent Expansion ◽  
Luminal Area ◽  
Coronary Lesions

IntroductionStent underexpansion is a predictor of in-stent-restenosis and stent thrombosis. Semi-compliant balloons (SCBs) are generally used for lesion preparation. It remains unknown whether routine predilatation using non-compliant balloons (NCBs) improves stent expansion in ordinary coronary lesions.MethodsThe PREdilatation by high-pressure NC balloon catheter for better vessel preparation and Optimal lesion preparation with non-compliant balloons for the implantation of bioresorbable vascular scaffolds studies randomised patients presenting with stable coronary artery disease or non-ST-elevation myocardial infarction requiring stent implantation to lesion preparation using NCBs versus SCBs. Stent expansion index (SEI-minimal luminal area/mean luminal area on optical coherence tomography) and periprocedural complications were compared.ResultsWe enrolled 104 patients: 53 patients (54 lesions) vs 51 patients (56 lesions) to the NCB and SCB groups, respectively. Predilatation pressure was higher in the NCB group (24±7 atmospheres (atm) vs 14±3 atm, p<0.0001). Postdilatation using NCBs was performed in 41 (76%) lesions vs 46 (82%) lesions pretreated with NCBs versus SCBs (p=0.57). Similar pressures were used for postdilatation with NCB in both groups (23±8 atm vs 23±9 atm, p=0.65). SEI after stent implantation was 0.88±0.13 in the NCB vs 0.85±0.14 in the SCB group (p=0.18). After postdilatation, SEI increased to 0.94±0.13 in the NCB group vs 0.88±0.13 in the SCB group (p=0.02). No relevant complications occurred.ConclusionsIn simple coronary lesions, predilatation/postdilatation with NCBs at high pressures appears to result in better scaffold and stent expansion. Using SCBs only for predilatation might lead to inadequate stent expansion and postdilatation with NCBs might only partially correct this. Predilatation and postdilatation using NCBs at high pressure is safe.Trial registration numberClinicalTrials.gov no. NCT03518645.

scholarly journals A Randomized Optical Coherence Tomography Study of Coronary Stent Strut Coverage and Luminal Protrusion With Rapamycin-Eluting Stents

2009 ◽  
Vol 2 (5) ◽  
pp. 437-444 ◽  
Author(s):  
Philip Moore ◽  
Peter Barlis ◽  
Jonathan Spiro ◽  
Gopal Ghimire ◽  
Michael Roughton ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Coronary Stent ◽  
Optical Coherence ◽  
Stent Strut

scholarly journals The Bioengineered Combo Dual-Therapy CD34 Antibody-Covered Sirolimus-Eluting Coronary Stent in Patients with Chronic Total Occlusion Evaluated by Clinical Outcome and Optical Coherence Tomography Imaging Analysis

2020 ◽  
Vol 10 (1) ◽  
pp. 80
Author(s):  
Recha Blessing ◽  
Majid Ahoopai ◽  
Martin Geyer ◽  
Moritz Brandt ◽  
Andreas M. Zeiher ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Chronic Total Occlusion ◽  
Quantitative Coronary Angiography ◽  
Dual Therapy ◽  
Coronary Stent ◽  
Neointima Formation ◽  
Optical Coherence ◽  
Total Occlusion ◽  
Angiographic Restenosis

We sought to determine the effects of the use of a Bioengineered Combo Dual-Therapy CD34 Antibody-Covered Sirolimus-Eluting Coronary Stent (Combo® DTS) in patients with chronic total occlusion (CTO) by evaluating clinical outcomes and by performing an optical coherence tomography (OCT) analysis. We retrospectively analyzed data from 39 patients who had successfully undergone OCT-guided revascularization of a CTO being treated with a Combo® DTS. Clinical assessment, angiography (with quantitative coronary angiography analysis) and OCT examination were performed at baseline and at follow-up. The median follow-up period was 189 days, ranging from 157 to 615 days. At follow-up, revascularization was required due to angiographic restenosis in 40% (14 of 35) of patients. OCT analysis detected neointima proliferation in 23 (76.6%) patients. Neointima formation was often associated with microvessels in 18 patients (60%). Neoatheroslcerosis was observed in 2 (6.6%) patients. Malapposition was found in 4 patients (13.3%), and stent fractures were found in 11 patients (36.6%). Rate of strut coverage was 96.3% at follow-up. In conclusion, the implantation of a Combo® DTS after successful CTO recanalization was associated with a restenosis rate of 40% despite good stent implantation at baseline, proven by OCT. Neointima formation was found as a main contributor to restenosis. Nevertheless, we observed a low rate of major cardiovascular events in our follow-up.

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